fix(profiling): fix absurdly high lock hold times in Lock Profiler [backport 3.19] #15463

dd-octo-sts · 2025-11-29T19:48:12Z

Backport 2cfb922 from #15408 to 3.19.

Fix lock profiler generating release samples for non-sampled acquires

Problem

As reported by @dchayes-dd in our Slack channel: Lock Profiler displays unrealistic lock hold times (either too large or even negative). The negative values are legitimate int64 overflows, which in itself is a red herring. The root cause is described below.

Example 1

Flame graph with negative lock hold time: -970 days / min

Example 2

Flame graph with absurdly high lock hold time: 19,000 days / min

Impact

This affected virtually ALL customers, unless they set the sampling rate very high (close to 100%).

With default capture_pct = 1.0 (1%):

99% of acquires → ARE NOT sampled (capture() returns False)
99% of releases → ARE sampled with duration = system_uptime (hours, days, months?)
==> Only 1% of logged releases samples are legitimate

In general, the lower the sampling rate, the worse the problem.

Root Cause

When capture_sampler.capture() returned False (due to sampling rate), the acquire event was correctly skipped, but the release event was still being sampled; and that sample's lock hold time was equal to system_uptime (hours, days, months?)

Fix

Initialize acquire_time to None, instead of 0, because 0 is not None and is a valid timestamp (a buggy check in _release that was letting through fake samples.)

Non-goal: removed the try / catch guarding deletion of sample's acquire_time attribute, since there is a race condition if multiple threads try to release one lock (which is allowed in Python.) Instead, we now explicitly reset the value to None, which is not subject to races.

Testing

Unit test

test commit - no fix yet - FAIL

$ git checkout ec010c348c
$ scripts/ddtest riot run --pass-env 116bda6 -- -k test_release_not_sampled_when_acquire_not_sampled
...
                # release samples should NOT be generated when acquire wasn't sampled
>       assert len(release_samples) == 0, (
            f"Expected no release samples when acquire wasn't sampled, got {len(release_samples)}"
        )
E       AssertionError: Expected no release samples when acquire wasn't sampled, got 1
E       assert 1 == 0

fix commit - PASS

$ git checkout ffeb5c696f
$ scripts/ddtest riot run --pass-env 116bda6 -- -k test_release_not_sampled_when_acquire_not_sampled
...
collected 142 items / 140 deselected / 2 selected                                                                                              

tests/profiling/collector/test_threading.py::TestThreadingLockCollector::test_release_not_sampled_when_acquire_not_sampled[py3.13] PASSED
tests/profiling/collector/test_threading.py::TestThreadingRLockCollector::test_release_not_sampled_when_acquire_not_sampled[py3.13] PASSED

Manual Validation

Tested with reproduction script (repro_lock_profiler.py) running 2000 lock operations with 1ms hold time at 1% sampling rate:

Expected Profile
The script acquires locks for 1ms each with a 1% sampling rate.
2000 lock ops × 1ms = 2 seconds total hold time.
With 1% sampling rate = ~20ms of lock hold samples.

BEFORE (buggy): 1.04 seconds/min

Profile link
Flamegraph dominated by 809ms in threading.py:522 and other bogus samples
Expected ~20ms of legitimate samples, got 1040ms total (52x inflation)

AFTER (fixed): 23 milliseconds/min

Profile link
Clean flamegraph showing only actual lock hold at repro_lock_profiler.py:56
Expected ~20ms, got 23ms
~45x reduction in bogus lock time

@dchayes-dd

…15408) ## Fix lock profiler generating release samples for non-sampled acquires ### Problem As reported by @dchayes-dd in our Slack channel: Lock Profiler displays unrealistic lock hold times (either too large or even negative). The negative values are legitimate int64 overflows, which in itself is a red herring. The root cause is described below. **Example 1** * [Flame graph](https://app.datadoghq.com/profiling/explorer?query=service%3Awatchdog_explorer%20datacenter%3Aus1.prod.dog&agg_m=%40prof_core_cpu_cores&agg_m_source=base&agg_q=service&agg_q_source=base&agg_t=sum&fromUser=true&my_code=enabled&profile_type=lock-hold-time&profiling-timeline__stack_order=top-down&profiling-timeline__summary_tab=breakdown&profiling-timeline__tb=1763580147405000000&profiling-timeline__tf_f_0=0&profiling-timeline__tf_f_1=121233000000&profiling-timeline__tf_us_0=0&profiling-timeline__tf_us_1=121233000000&refresh_mode=paused&selected_tf=1763579722252.7107%2C1763580268638&top_n=100&top_o=top&viz=flame_graph&x_missing=true&from_ts=1763568998228&to_ts=1763583398228&live=false) with negative lock hold time: `-970 days / min` <img width="1546" height="322" alt="Screenshot 2025-11-24 at 10 08 09 PM" src="https://github.com/user-attachments/assets/e2f2e38b-3282-493f-bd17-8f7545776d51" /> **Example 2** * [Flame graph](https://app.datadoghq.com/profiling/explorer?query=service%3Awatchdog_explorer%20datacenter%3Aus1.prod.dog%20runtime-id%3Adc67db679fe041f1b1d04dbc8a903e22&agg_m=%40prof_python_cpu_cores&agg_m_source=base&agg_q=service&agg_q_source=base&agg_t=sum&extra_search_fields=%7B%22filters_query%22%3A%22%22%2C%22sample_type%22%3A%22cpu-time%22%7D&fromUser=true&my_code=enabled&profile_type=lock-hold-time&profiling-timeline__stack_order=top-down&profiling-timeline__summary_tab=breakdown&profiling-timeline__tb=1763580092026000000&profiling-timeline__tf_f_0=0&profiling-timeline__tf_f_1=121249000000&profiling-timeline__tf_us_0=0&profiling-timeline__tf_us_1=121249000000&refresh_mode=paused&selected_tf=1763580092026%2C1763580213275&top_n=100&top_o=top&viz=flame_graph&x_missing=true&from_ts=1763579722252&to_ts=1763580268638&live=false) with absurdly high lock hold time: `19,000 days / min` <img width="1532" height="313" alt="Screenshot 2025-11-24 at 10 16 05 PM" src="https://github.com/user-attachments/assets/c7e056ed-faf5-4707-9ddd-002eb3b2234a" /> ### Impact _**This affected virtually ALL customers, unless they set the sampling rate very high (close to 100%).**_ With default `capture_pct = 1.0` (1%): - **99% of acquires** → ARE NOT sampled (`capture()` returns `False`) - **99% of releases** → ARE sampled with `duration = system_uptime` (hours, days, months?) ==> Only **1% of logged releases samples** are legitimate In general, the lower the sampling rate, the worse the problem. ### Root Cause When `capture_sampler.capture()` returned `False` (due to sampling rate), the acquire event was correctly skipped, but the release event was still being sampled; and that sample's lock hold time was equal to `system_uptime` (hours, days, months?) ### Fix Initialize `acquire_time` to None, instead of 0, because `0 is not None` and is a valid timestamp (a buggy check in `_release` that was letting through fake samples.) Non-goal: removed the try / catch guarding deletion of sample's `acquire_time` attribute, since there is a race condition if multiple threads try to release one lock (which is allowed in Python.) Instead, we now explicitly reset the value to None, which is not subject to races. ### Testing #### Unit test * test commit - no fix yet - FAIL ``` $ git checkout ec010c3 $ scripts/ddtest riot run --pass-env 116bda6 -- -k test_release_not_sampled_when_acquire_not_sampled ... # release samples should NOT be generated when acquire wasn't sampled > assert len(release_samples) == 0, ( f"Expected no release samples when acquire wasn't sampled, got {len(release_samples)}" ) E AssertionError: Expected no release samples when acquire wasn't sampled, got 1 E assert 1 == 0 ``` * fix commit - PASS ``` $ git checkout ffeb5c6 $ scripts/ddtest riot run --pass-env 116bda6 -- -k test_release_not_sampled_when_acquire_not_sampled ... collected 142 items / 140 deselected / 2 selected tests/profiling/collector/test_threading.py::TestThreadingLockCollector::test_release_not_sampled_when_acquire_not_sampled[py3.13] PASSED tests/profiling/collector/test_threading.py::TestThreadingRLockCollector::test_release_not_sampled_when_acquire_not_sampled[py3.13] PASSED ``` #### Manual Validation Tested with [reproduction script (`repro_lock_profiler.py`)](https://github.com/DataDog/dd-trace-py/compare/vlad/lockprof-fix-absurdly-inflated-lock-hold-times-test-script) running 2000 lock operations with 1ms hold time at 1% sampling rate: **Expected Profile** The script acquires locks for 1ms each with a 1% sampling rate. 2000 lock ops × 1ms = 2 seconds total hold time. With 1% sampling rate = ~20ms of lock hold samples. **BEFORE (buggy):** **1.04 seconds/min** - [Profile link](https://app.datadoghq.com/profiling/explorer?query=host%3ACOMP-LR7JK0FKW1%20service%3Alockprof-repro-before&profile_type=lock-hold-time) - Flamegraph dominated by 809ms in `threading.py:522` and other bogus samples - Expected ~20ms of legitimate samples, got **1040ms total** (52x inflation) <img width="1615" height="690" alt="high_hold_times_repro_before" src="https://github.com/user-attachments/assets/0baf8041-2b7d-4324-ad21-8db178d15dda" /> **AFTER (fixed):** **23 milliseconds/min** - [Profile link](https://app.datadoghq.com/profiling/explorer?query=host%3ACOMP-LR7JK0FKW1%20service%3Alockprof-repro-after&profile_type=lock-hold-time) - Clean flamegraph showing only actual lock hold at `repro_lock_profiler.py:56` - Expected ~20ms, got **23ms** - **~45x reduction** in bogus lock time <img width="1611" height="584" alt="high_hold_times_repro_after" src="https://github.com/user-attachments/assets/68c7811a-a00a-4eec-84ab-0f4d875d80d5" /> (cherry picked from commit 2cfb922)

github-actions · 2025-11-29T19:48:46Z

CODEOWNERS have been resolved as:

releasenotes/notes/lock-profiler-fix-inflated-lock-hold-times-c0da83d00a6d704e.yaml  @DataDog/apm-python
ddtrace/profiling/collector/_lock.py                                    @DataDog/profiling-python
tests/profiling/collector/pprof_utils.py                                @DataDog/profiling-python
tests/profiling_v2/collector/test_threading.py                          @DataDog/profiling-python

github-actions · 2025-11-29T20:15:56Z

Bootstrap import analysis

Comparison of import times between this PR and base.

Summary

The average import time from this PR is: 249 ± 2 ms.

The average import time from base is: 251 ± 3 ms.

The import time difference between this PR and base is: -2.0 ± 0.1 ms.

Import time breakdown

The following import paths have shrunk:

ddtrace.auto 1.980 ms (0.79%)

ddtrace.bootstrap.sitecustomize 1.293 ms (0.52%)

ddtrace.bootstrap.preload 1.293 ms (0.52%)

ddtrace.internal.remoteconfig.client 0.625 ms (0.25%)

ddtrace 0.687 ms (0.28%)

ddtrace.internal._unpatched 0.029 ms (0.01%)

json 0.029 ms (0.01%)

json.decoder 0.029 ms (0.01%)

re 0.029 ms (0.01%)

enum 0.029 ms (0.01%)

types 0.029 ms (0.01%)

pr-commenter · 2025-11-29T20:46:45Z

Performance SLOs

Comparing candidate backport-15408-to-3.19 (5d7bec9) with baseline 3.19 (ea3cfae)

📈 Performance Regressions (3 suites)

📈 iastaspects - 118/118

✅ add_aspect

Time: ✅ 0.411µs (SLO: <10.000µs 📉 -95.9%) vs baseline: +2.2%

Memory: ✅ 39.833MB (SLO: <41.500MB -4.0%) vs baseline: +4.5%

✅ add_inplace_aspect

Time: ✅ 0.407µs (SLO: <10.000µs 📉 -95.9%) vs baseline: +1.0%

Memory: ✅ 39.774MB (SLO: <41.500MB -4.2%) vs baseline: +4.7%

✅ add_inplace_noaspect

Time: ✅ 0.317µs (SLO: <10.000µs 📉 -96.8%) vs baseline: -0.8%

Memory: ✅ 39.813MB (SLO: <41.500MB -4.1%) vs baseline: +4.9%

✅ add_noaspect

Time: ✅ 0.280µs (SLO: <10.000µs 📉 -97.2%) vs baseline: +1.2%

Memory: ✅ 39.911MB (SLO: <41.500MB -3.8%) vs baseline: +5.1%

✅ bytearray_aspect

Time: ✅ 1.290µs (SLO: <10.000µs 📉 -87.1%) vs baseline: -0.6%

Memory: ✅ 39.774MB (SLO: <41.500MB -4.2%) vs baseline: +4.7%

✅ bytearray_extend_aspect

Time: ✅ 1.533µs (SLO: <10.000µs 📉 -84.7%) vs baseline: -0.5%

Memory: ✅ 39.754MB (SLO: <41.500MB -4.2%) vs baseline: +4.8%

✅ bytearray_extend_noaspect

Time: ✅ 0.615µs (SLO: <10.000µs 📉 -93.9%) vs baseline: +0.9%

Memory: ✅ 39.754MB (SLO: <41.500MB -4.2%) vs baseline: +4.3%

✅ bytearray_noaspect

Time: ✅ 0.481µs (SLO: <10.000µs 📉 -95.2%) vs baseline: -0.4%

Memory: ✅ 39.754MB (SLO: <41.500MB -4.2%) vs baseline: +4.9%

✅ bytes_aspect

Time: ✅ 1.287µs (SLO: <10.000µs 📉 -87.1%) vs baseline: -0.4%

Memory: ✅ 39.833MB (SLO: <41.500MB -4.0%) vs baseline: +4.7%

✅ bytes_noaspect

Time: ✅ 0.489µs (SLO: <10.000µs 📉 -95.1%) vs baseline: -1.2%

Memory: ✅ 39.852MB (SLO: <41.500MB -4.0%) vs baseline: +5.0%

✅ bytesio_aspect

Time: ✅ 1.314µs (SLO: <10.000µs 📉 -86.9%) vs baseline: -0.7%

Memory: ✅ 39.793MB (SLO: <41.500MB -4.1%) vs baseline: +4.8%

✅ bytesio_noaspect

Time: ✅ 0.500µs (SLO: <10.000µs 📉 -95.0%) vs baseline: +0.8%

Memory: ✅ 39.774MB (SLO: <41.500MB -4.2%) vs baseline: +4.9%

✅ capitalize_aspect

Time: ✅ 0.740µs (SLO: <10.000µs 📉 -92.6%) vs baseline: +1.1%

Memory: ✅ 39.793MB (SLO: <41.500MB -4.1%) vs baseline: +4.9%

✅ capitalize_noaspect

Time: ✅ 0.442µs (SLO: <10.000µs 📉 -95.6%) vs baseline: +1.8%

Memory: ✅ 39.793MB (SLO: <41.500MB -4.1%) vs baseline: +4.7%

✅ casefold_aspect

Time: ✅ 0.733µs (SLO: <10.000µs 📉 -92.7%) vs baseline: -0.2%

Memory: ✅ 39.774MB (SLO: <41.500MB -4.2%) vs baseline: +5.0%

✅ casefold_noaspect

Time: ✅ 0.368µs (SLO: <10.000µs 📉 -96.3%) vs baseline: -1.1%

Memory: ✅ 39.734MB (SLO: <41.500MB -4.3%) vs baseline: +4.6%

✅ decode_aspect

Time: ✅ 0.729µs (SLO: <10.000µs 📉 -92.7%) vs baseline: -0.1%

Memory: ✅ 39.852MB (SLO: <41.500MB -4.0%) vs baseline: +5.1%

✅ decode_noaspect

Time: ✅ 0.419µs (SLO: <10.000µs 📉 -95.8%) vs baseline: +0.7%

Memory: ✅ 39.754MB (SLO: <41.500MB -4.2%) vs baseline: +4.6%

✅ encode_aspect

Time: ✅ 0.712µs (SLO: <10.000µs 📉 -92.9%) vs baseline: ~same

Memory: ✅ 39.734MB (SLO: <41.500MB -4.3%) vs baseline: +4.4%

✅ encode_noaspect

Time: ✅ 0.401µs (SLO: <10.000µs 📉 -96.0%) vs baseline: -0.5%

Memory: ✅ 39.734MB (SLO: <41.500MB -4.3%) vs baseline: +4.4%

✅ format_aspect

Time: ✅ 3.346µs (SLO: <10.000µs 📉 -66.5%) vs baseline: +0.3%

Memory: ✅ 39.833MB (SLO: <41.500MB -4.0%) vs baseline: +4.8%

✅ format_map_aspect

Time: ✅ 4.086µs (SLO: <10.000µs 📉 -59.1%) vs baseline: 📈 +15.1%

Memory: ✅ 39.852MB (SLO: <41.500MB -4.0%) vs baseline: +4.9%

✅ format_map_noaspect

Time: ✅ 0.770µs (SLO: <10.000µs 📉 -92.3%) vs baseline: -0.2%

Memory: ✅ 39.892MB (SLO: <41.500MB -3.9%) vs baseline: +5.0%

✅ format_noaspect

Time: ✅ 0.594µs (SLO: <10.000µs 📉 -94.1%) vs baseline: -0.6%

Memory: ✅ 39.793MB (SLO: <41.500MB -4.1%) vs baseline: +5.0%

✅ index_aspect

Time: ✅ 0.359µs (SLO: <10.000µs 📉 -96.4%) vs baseline: -0.3%

Memory: ✅ 39.872MB (SLO: <41.500MB -3.9%) vs baseline: +5.4%

✅ index_noaspect

Time: ✅ 0.275µs (SLO: <10.000µs 📉 -97.3%) vs baseline: ~same

Memory: ✅ 39.774MB (SLO: <41.500MB -4.2%) vs baseline: +4.6%

✅ join_aspect

Time: ✅ 1.391µs (SLO: <10.000µs 📉 -86.1%) vs baseline: -0.9%

Memory: ✅ 39.833MB (SLO: <41.500MB -4.0%) vs baseline: +5.0%

✅ join_noaspect

Time: ✅ 0.491µs (SLO: <10.000µs 📉 -95.1%) vs baseline: +0.1%

Memory: ✅ 39.675MB (SLO: <41.500MB -4.4%) vs baseline: +4.6%

✅ ljust_aspect

Time: ✅ 2.538µs (SLO: <20.000µs 📉 -87.3%) vs baseline: -0.4%

Memory: ✅ 39.774MB (SLO: <41.500MB -4.2%) vs baseline: +4.7%

✅ ljust_noaspect

Time: ✅ 0.409µs (SLO: <10.000µs 📉 -95.9%) vs baseline: +1.1%

Memory: ✅ 39.892MB (SLO: <41.500MB -3.9%) vs baseline: +5.3%

✅ lower_aspect

Time: ✅ 2.219µs (SLO: <10.000µs 📉 -77.8%) vs baseline: +0.5%

Memory: ✅ 39.813MB (SLO: <41.500MB -4.1%) vs baseline: +4.9%

✅ lower_noaspect

Time: ✅ 0.371µs (SLO: <10.000µs 📉 -96.3%) vs baseline: +1.3%

Memory: ✅ 39.793MB (SLO: <41.500MB -4.1%) vs baseline: +4.9%

✅ lstrip_aspect

Time: ✅ 2.236µs (SLO: <20.000µs 📉 -88.8%) vs baseline: -0.2%

Memory: ✅ 39.754MB (SLO: <41.500MB -4.2%) vs baseline: +4.8%

✅ lstrip_noaspect

Time: ✅ 0.384µs (SLO: <10.000µs 📉 -96.2%) vs baseline: +1.7%

Memory: ✅ 39.852MB (SLO: <41.500MB -4.0%) vs baseline: +5.1%

✅ modulo_aspect

Time: ✅ 0.993µs (SLO: <10.000µs 📉 -90.1%) vs baseline: +0.4%

Memory: ✅ 39.872MB (SLO: <41.500MB -3.9%) vs baseline: +5.2%

✅ modulo_aspect_for_bytearray_bytearray

Time: ✅ 1.536µs (SLO: <10.000µs 📉 -84.6%) vs baseline: ~same

Memory: ✅ 39.833MB (SLO: <41.500MB -4.0%) vs baseline: +5.2%

✅ modulo_aspect_for_bytes

Time: ✅ 0.973µs (SLO: <10.000µs 📉 -90.3%) vs baseline: -0.5%

Memory: ✅ 39.833MB (SLO: <41.500MB -4.0%) vs baseline: +4.8%

✅ modulo_aspect_for_bytes_bytearray

Time: ✅ 1.196µs (SLO: <10.000µs 📉 -88.0%) vs baseline: -1.3%

Memory: ✅ 39.852MB (SLO: <41.500MB -4.0%) vs baseline: +5.1%

✅ modulo_noaspect

Time: ✅ 0.629µs (SLO: <10.000µs 📉 -93.7%) vs baseline: +0.4%

Memory: ✅ 39.833MB (SLO: <41.500MB -4.0%) vs baseline: +5.0%

✅ replace_aspect

Time: ✅ 4.899µs (SLO: <10.000µs 📉 -51.0%) vs baseline: +0.4%

Memory: ✅ 39.931MB (SLO: <41.500MB -3.8%) vs baseline: +5.3%

✅ replace_noaspect

Time: ✅ 0.459µs (SLO: <10.000µs 📉 -95.4%) vs baseline: -0.3%

Memory: ✅ 39.734MB (SLO: <41.500MB -4.3%) vs baseline: +4.5%

✅ repr_aspect

Time: ✅ 0.910µs (SLO: <10.000µs 📉 -90.9%) vs baseline: -0.6%

Memory: ✅ 39.892MB (SLO: <41.500MB -3.9%) vs baseline: +5.1%

✅ repr_noaspect

Time: ✅ 0.423µs (SLO: <10.000µs 📉 -95.8%) vs baseline: +1.1%

Memory: ✅ 39.833MB (SLO: <41.500MB -4.0%) vs baseline: +5.1%

✅ rstrip_aspect

Time: ✅ 1.876µs (SLO: <20.000µs 📉 -90.6%) vs baseline: -1.2%

Memory: ✅ 39.892MB (SLO: <41.500MB -3.9%) vs baseline: +5.1%

✅ rstrip_noaspect

Time: ✅ 0.379µs (SLO: <10.000µs 📉 -96.2%) vs baseline: ~same

Memory: ✅ 39.734MB (SLO: <41.500MB -4.3%) vs baseline: +4.9%

✅ slice_aspect

Time: ✅ 0.497µs (SLO: <10.000µs 📉 -95.0%) vs baseline: +0.1%

Memory: ✅ 39.833MB (SLO: <41.500MB -4.0%) vs baseline: +5.1%

✅ slice_noaspect

Time: ✅ 0.447µs (SLO: <10.000µs 📉 -95.5%) vs baseline: -0.7%

Memory: ✅ 39.793MB (SLO: <41.500MB -4.1%) vs baseline: +5.0%

✅ stringio_aspect

Time: ✅ 1.596µs (SLO: <10.000µs 📉 -84.0%) vs baseline: +3.4%

Memory: ✅ 39.833MB (SLO: <41.500MB -4.0%) vs baseline: +4.8%

✅ stringio_noaspect

Time: ✅ 0.721µs (SLO: <10.000µs 📉 -92.8%) vs baseline: ~same

Memory: ✅ 39.754MB (SLO: <41.500MB -4.2%) vs baseline: +4.9%

✅ strip_aspect

Time: ✅ 2.259µs (SLO: <20.000µs 📉 -88.7%) vs baseline: +2.3%

Memory: ✅ 39.715MB (SLO: <41.500MB -4.3%) vs baseline: +4.5%

✅ strip_noaspect

Time: ✅ 0.386µs (SLO: <10.000µs 📉 -96.1%) vs baseline: +0.9%

Memory: ✅ 39.813MB (SLO: <41.500MB -4.1%) vs baseline: +5.1%

✅ swapcase_aspect

Time: ✅ 2.399µs (SLO: <10.000µs 📉 -76.0%) vs baseline: -0.6%

Memory: ✅ 39.833MB (SLO: <41.500MB -4.0%) vs baseline: +4.8%

✅ swapcase_noaspect

Time: ✅ 0.539µs (SLO: <10.000µs 📉 -94.6%) vs baseline: +0.3%

Memory: ✅ 39.754MB (SLO: <41.500MB -4.2%) vs baseline: +4.7%

✅ title_aspect

Time: ✅ 2.333µs (SLO: <10.000µs 📉 -76.7%) vs baseline: +0.2%

Memory: ✅ 39.793MB (SLO: <41.500MB -4.1%) vs baseline: +4.7%

✅ title_noaspect

Time: ✅ 0.505µs (SLO: <10.000µs 📉 -95.0%) vs baseline: +0.5%

Memory: ✅ 39.793MB (SLO: <41.500MB -4.1%) vs baseline: +5.1%

✅ translate_aspect

Time: ✅ 3.259µs (SLO: <10.000µs 📉 -67.4%) vs baseline: +1.4%

Memory: ✅ 39.852MB (SLO: <41.500MB -4.0%) vs baseline: +5.0%

✅ translate_noaspect

Time: ✅ 1.041µs (SLO: <10.000µs 📉 -89.6%) vs baseline: -0.2%

Memory: ✅ 39.833MB (SLO: <41.500MB -4.0%) vs baseline: +5.0%

✅ upper_aspect

Time: ✅ 2.199µs (SLO: <10.000µs 📉 -78.0%) vs baseline: -0.2%

Memory: ✅ 39.813MB (SLO: <41.500MB -4.1%) vs baseline: +4.9%

✅ upper_noaspect

Time: ✅ 0.371µs (SLO: <10.000µs 📉 -96.3%) vs baseline: +0.6%

Memory: ✅ 39.734MB (SLO: <41.500MB -4.3%) vs baseline: +4.7%

📈 iastaspectsospath - 24/24

✅ ospathbasename_aspect

Time: ✅ 4.261µs (SLO: <10.000µs 📉 -57.4%) vs baseline: -1.5%

Memory: ✅ 39.774MB (SLO: <41.000MB -3.0%) vs baseline: +4.8%

✅ ospathbasename_noaspect

Time: ✅ 1.076µs (SLO: <10.000µs 📉 -89.2%) vs baseline: -1.0%

Memory: ✅ 39.695MB (SLO: <41.000MB -3.2%) vs baseline: +4.5%

✅ ospathjoin_aspect

Time: ✅ 6.150µs (SLO: <10.000µs 📉 -38.5%) vs baseline: -1.1%

Memory: ✅ 39.813MB (SLO: <41.000MB -2.9%) vs baseline: +5.3%

✅ ospathjoin_noaspect

Time: ✅ 2.283µs (SLO: <10.000µs 📉 -77.2%) vs baseline: -0.3%

Memory: ✅ 39.656MB (SLO: <41.000MB -3.3%) vs baseline: +4.4%

✅ ospathnormcase_aspect

Time: ✅ 3.651µs (SLO: <10.000µs 📉 -63.5%) vs baseline: +1.0%

Memory: ✅ 39.852MB (SLO: <41.000MB -2.8%) vs baseline: +4.8%

✅ ospathnormcase_noaspect

Time: ✅ 0.576µs (SLO: <10.000µs 📉 -94.2%) vs baseline: +0.3%

Memory: ✅ 39.734MB (SLO: <41.000MB -3.1%) vs baseline: +4.8%

✅ ospathsplit_aspect

Time: ✅ 4.821µs (SLO: <10.000µs 📉 -51.8%) vs baseline: -0.4%

Memory: ✅ 39.872MB (SLO: <41.000MB -2.8%) vs baseline: +5.2%

✅ ospathsplit_noaspect

Time: ✅ 1.598µs (SLO: <10.000µs 📉 -84.0%) vs baseline: +0.1%

Memory: ✅ 39.793MB (SLO: <41.000MB -2.9%) vs baseline: +5.1%

✅ ospathsplitdrive_aspect

Time: ✅ 4.257µs (SLO: <10.000µs 📉 -57.4%) vs baseline: 📈 +13.3%

Memory: ✅ 39.833MB (SLO: <41.000MB -2.8%) vs baseline: +4.9%

✅ ospathsplitdrive_noaspect

Time: ✅ 0.706µs (SLO: <10.000µs 📉 -92.9%) vs baseline: +0.8%

Memory: ✅ 39.734MB (SLO: <41.000MB -3.1%) vs baseline: +4.3%

✅ ospathsplitext_aspect

Time: ✅ 4.567µs (SLO: <10.000µs 📉 -54.3%) vs baseline: -0.8%

Memory: ✅ 39.754MB (SLO: <41.000MB -3.0%) vs baseline: +4.9%

✅ ospathsplitext_noaspect

Time: ✅ 1.370µs (SLO: <10.000µs 📉 -86.3%) vs baseline: -0.6%

Memory: ✅ 39.675MB (SLO: <41.000MB -3.2%) vs baseline: +4.6%

📈 telemetryaddmetric - 30/30

✅ 1-count-metric-1-times

Time: ✅ 3.322µs (SLO: <20.000µs 📉 -83.4%) vs baseline: 📈 +11.8%

Memory: ✅ 34.406MB (SLO: <35.500MB -3.1%) vs baseline: +4.7%

✅ 1-count-metrics-100-times

Time: ✅ 203.839µs (SLO: <220.000µs -7.3%) vs baseline: ~same

Memory: ✅ 34.544MB (SLO: <35.500MB -2.7%) vs baseline: +4.9%

✅ 1-distribution-metric-1-times

Time: ✅ 3.293µs (SLO: <20.000µs 📉 -83.5%) vs baseline: +0.4%

Memory: ✅ 34.505MB (SLO: <35.500MB -2.8%) vs baseline: +4.8%

✅ 1-distribution-metrics-100-times

Time: ✅ 215.548µs (SLO: <220.000µs -2.0%) vs baseline: +0.9%

Memory: ✅ 34.465MB (SLO: <35.500MB -2.9%) vs baseline: +4.9%

✅ 1-gauge-metric-1-times

Time: ✅ 2.506µs (SLO: <20.000µs 📉 -87.5%) vs baseline: 📈 +15.4%

Memory: ✅ 34.505MB (SLO: <35.500MB -2.8%) vs baseline: +4.8%

✅ 1-gauge-metrics-100-times

Time: ✅ 136.971µs (SLO: <150.000µs -8.7%) vs baseline: +0.1%

Memory: ✅ 34.465MB (SLO: <35.500MB -2.9%) vs baseline: +4.9%

✅ 1-rate-metric-1-times

Time: ✅ 3.479µs (SLO: <20.000µs 📉 -82.6%) vs baseline: 📈 +12.2%

Memory: ✅ 34.485MB (SLO: <35.500MB -2.9%) vs baseline: +4.9%

✅ 1-rate-metrics-100-times

Time: ✅ 216.560µs (SLO: <250.000µs 📉 -13.4%) vs baseline: -0.8%

Memory: ✅ 34.446MB (SLO: <35.500MB -3.0%) vs baseline: +4.6%

✅ 100-count-metrics-100-times

Time: ✅ 20.336ms (SLO: <22.000ms -7.6%) vs baseline: +0.1%

Memory: ✅ 34.485MB (SLO: <35.500MB -2.9%) vs baseline: +4.8%

✅ 100-distribution-metrics-100-times

Time: ✅ 2.220ms (SLO: <2.300ms -3.5%) vs baseline: -1.2%

Memory: ✅ 34.524MB (SLO: <35.500MB -2.7%) vs baseline: +5.0%

✅ 100-gauge-metrics-100-times

Time: ✅ 1.404ms (SLO: <1.550ms -9.4%) vs baseline: ~same

Memory: ✅ 34.505MB (SLO: <35.500MB -2.8%) vs baseline: +5.0%

✅ 100-rate-metrics-100-times

Time: ✅ 2.241ms (SLO: <2.550ms 📉 -12.1%) vs baseline: +1.2%

Memory: ✅ 34.485MB (SLO: <35.500MB -2.9%) vs baseline: +5.0%

✅ flush-1-metric

Time: ✅ 4.532µs (SLO: <20.000µs 📉 -77.3%) vs baseline: +1.1%

Memory: ✅ 34.505MB (SLO: <35.500MB -2.8%) vs baseline: +4.9%

✅ flush-100-metrics

Time: ✅ 175.998µs (SLO: <250.000µs 📉 -29.6%) vs baseline: -0.5%

Memory: ✅ 34.819MB (SLO: <35.500MB 🟡 -1.9%) vs baseline: +4.6%

✅ flush-1000-metrics

Time: ✅ 2.117ms (SLO: <2.500ms 📉 -15.3%) vs baseline: -0.6%

Memory: ✅ 35.291MB (SLO: <36.500MB -3.3%) vs baseline: +4.8%

🟡 Near SLO Breach (2 suites)

🟡 djangosimple - 30/30

✅ appsec

Time: ✅ 20.515ms (SLO: <22.300ms -8.0%) vs baseline: ~same

Memory: ✅ 67.884MB (SLO: <70.500MB -3.7%) vs baseline: +4.5%

✅ exception-replay-enabled

Time: ✅ 1.339ms (SLO: <1.450ms -7.7%) vs baseline: ~same

Memory: ✅ 66.238MB (SLO: <67.500MB 🟡 -1.9%) vs baseline: +4.8%

✅ iast

Time: ✅ 20.446ms (SLO: <22.250ms -8.1%) vs baseline: -0.2%

Memory: ✅ 67.955MB (SLO: <70.000MB -2.9%) vs baseline: +4.8%

✅ profiler

Time: ✅ 15.300ms (SLO: <16.550ms -7.6%) vs baseline: -0.8%

Memory: ✅ 56.244MB (SLO: <57.500MB -2.2%) vs baseline: +4.9%

✅ resource-renaming

Time: ✅ 20.588ms (SLO: <21.750ms -5.3%) vs baseline: ~same

Memory: ✅ 67.891MB (SLO: <70.500MB -3.7%) vs baseline: +4.8%

✅ span-code-origin

Time: ✅ 25.413ms (SLO: <28.200ms -9.9%) vs baseline: ~same

Memory: ✅ 69.238MB (SLO: <71.000MB -2.5%) vs baseline: +4.7%

✅ tracer

Time: ✅ 20.502ms (SLO: <21.750ms -5.7%) vs baseline: +0.1%

Memory: ✅ 67.983MB (SLO: <70.000MB -2.9%) vs baseline: +4.6%

✅ tracer-and-profiler

Time: ✅ 22.350ms (SLO: <23.500ms -4.9%) vs baseline: -0.7%

Memory: ✅ 69.481MB (SLO: <71.000MB -2.1%) vs baseline: +4.9%

✅ tracer-dont-create-db-spans

Time: ✅ 19.347ms (SLO: <21.500ms 📉 -10.0%) vs baseline: -0.3%

Memory: ✅ 67.927MB (SLO: <70.000MB -3.0%) vs baseline: +4.7%

✅ tracer-minimal

Time: ✅ 16.625ms (SLO: <17.500ms -5.0%) vs baseline: ~same

Memory: ✅ 67.972MB (SLO: <70.000MB -2.9%) vs baseline: +4.9%

✅ tracer-native

Time: ✅ 20.611ms (SLO: <21.750ms -5.2%) vs baseline: +0.6%

Memory: ✅ 68.011MB (SLO: <72.500MB -6.2%) vs baseline: +4.8%

✅ tracer-no-caches

Time: ✅ 18.468ms (SLO: <19.650ms -6.0%) vs baseline: -0.4%

Memory: ✅ 67.980MB (SLO: <70.000MB -2.9%) vs baseline: +4.7%

✅ tracer-no-databases

Time: ✅ 18.778ms (SLO: <20.100ms -6.6%) vs baseline: -0.3%

Memory: ✅ 67.850MB (SLO: <70.000MB -3.1%) vs baseline: +5.0%

✅ tracer-no-middleware

Time: ✅ 20.078ms (SLO: <21.500ms -6.6%) vs baseline: -0.2%

Memory: ✅ 67.970MB (SLO: <70.000MB -2.9%) vs baseline: +4.7%

✅ tracer-no-templates

Time: ✅ 20.357ms (SLO: <22.000ms -7.5%) vs baseline: -0.2%

Memory: ✅ 68.028MB (SLO: <70.500MB -3.5%) vs baseline: +4.9%

🟡 packagespackageforrootmodulemapping - 4/4

✅ cache_off

Time: ✅ 344.303ms (SLO: <354.300ms -2.8%) vs baseline: +0.5%

Memory: ✅ 40.680MB (SLO: <41.500MB 🟡 -2.0%) vs baseline: +5.9%

✅ cache_on

Time: ✅ 0.386µs (SLO: <10.000µs 📉 -96.1%) vs baseline: +0.1%

Memory: ✅ 38.681MB (SLO: <41.000MB -5.7%) vs baseline: +4.0%

⚠️ Unstable Tests (1 suite)

⚠️

coreapiscenario - 10/10 (1 unstable)

⚠️ context_with_data_listeners

Time: ⚠️ 13.286µs (SLO: <20.000µs 📉 -33.6%) vs baseline: +0.4%

Memory: ✅ 34.505MB (SLO: <35.500MB -2.8%) vs baseline: +4.9%

✅ context_with_data_no_listeners

Time: ✅ 3.277µs (SLO: <10.000µs 📉 -67.2%) vs baseline: -0.5%

Memory: ✅ 34.505MB (SLO: <35.500MB -2.8%) vs baseline: +4.9%

✅ get_item_exists

Time: ✅ 0.587µs (SLO: <10.000µs 📉 -94.1%) vs baseline: +0.6%

Memory: ✅ 34.426MB (SLO: <35.500MB -3.0%) vs baseline: +4.7%

✅ get_item_missing

Time: ✅ 0.641µs (SLO: <10.000µs 📉 -93.6%) vs baseline: +0.2%

Memory: ✅ 34.446MB (SLO: <35.500MB -3.0%) vs baseline: +4.6%

✅ set_item

Time: ✅ 24.332µs (SLO: <30.000µs 📉 -18.9%) vs baseline: -1.8%

Memory: ✅ 34.465MB (SLO: <35.500MB -2.9%) vs baseline: +4.6%

✅ All Tests Passing (17 suites)

✅ errortrackingdjangosimple - 6/6

✅ errortracking-enabled-all

Time: ✅ 18.047ms (SLO: <19.850ms -9.1%) vs baseline: +0.1%

Memory: ✅ 68.085MB (SLO: <70.000MB -2.7%) vs baseline: +5.1%

✅ errortracking-enabled-user

Time: ✅ 18.078ms (SLO: <19.400ms -6.8%) vs baseline: +0.1%

Memory: ✅ 68.085MB (SLO: <70.000MB -2.7%) vs baseline: +5.0%

✅ tracer-enabled

Time: ✅ 18.218ms (SLO: <19.450ms -6.3%) vs baseline: +0.9%

Memory: ✅ 67.804MB (SLO: <70.000MB -3.1%) vs baseline: +4.7%

✅ errortrackingflasksqli - 6/6

✅ errortracking-enabled-all

Time: ✅ 2.069ms (SLO: <2.300ms 📉 -10.1%) vs baseline: +0.2%

Memory: ✅ 54.401MB (SLO: <56.500MB -3.7%) vs baseline: +4.9%

✅ errortracking-enabled-user

Time: ✅ 2.074ms (SLO: <2.250ms -7.8%) vs baseline: +0.4%

Memory: ✅ 54.264MB (SLO: <56.500MB -4.0%) vs baseline: +4.7%

✅ tracer-enabled

Time: ✅ 2.068ms (SLO: <2.300ms 📉 -10.1%) vs baseline: +0.2%

Memory: ✅ 54.382MB (SLO: <56.500MB -3.7%) vs baseline: +4.7%

✅ flasksimple - 18/18

✅ appsec-get

Time: ✅ 4.593ms (SLO: <4.750ms -3.3%) vs baseline: -0.1%

Memory: ✅ 64.293MB (SLO: <66.500MB -3.3%) vs baseline: +4.9%

✅ appsec-post

Time: ✅ 6.615ms (SLO: <6.750ms -2.0%) vs baseline: ~same

Memory: ✅ 64.335MB (SLO: <66.500MB -3.3%) vs baseline: +4.8%

✅ appsec-telemetry

Time: ✅ 4.593ms (SLO: <4.750ms -3.3%) vs baseline: +0.2%

Memory: ✅ 64.221MB (SLO: <66.500MB -3.4%) vs baseline: +4.8%

✅ debugger

Time: ✅ 1.860ms (SLO: <2.000ms -7.0%) vs baseline: -0.3%

Memory: ✅ 47.959MB (SLO: <49.500MB -3.1%) vs baseline: +4.6%

✅ iast-get

Time: ✅ 1.860ms (SLO: <2.000ms -7.0%) vs baseline: ~same

Memory: ✅ 44.706MB (SLO: <49.000MB -8.8%) vs baseline: +4.8%

✅ profiler

Time: ✅ 1.915ms (SLO: <2.100ms -8.8%) vs baseline: -0.5%

Memory: ✅ 48.826MB (SLO: <50.000MB -2.3%) vs baseline: +4.8%

✅ resource-renaming

Time: ✅ 3.368ms (SLO: <3.650ms -7.7%) vs baseline: +0.1%

Memory: ✅ 54.474MB (SLO: <56.000MB -2.7%) vs baseline: +4.7%

✅ tracer

Time: ✅ 3.353ms (SLO: <3.650ms -8.1%) vs baseline: ~same

Memory: ✅ 54.476MB (SLO: <56.500MB -3.6%) vs baseline: +4.6%

✅ tracer-native

Time: ✅ 3.354ms (SLO: <3.650ms -8.1%) vs baseline: -0.1%

Memory: ✅ 54.648MB (SLO: <60.000MB -8.9%) vs baseline: +5.1%

✅ flasksqli - 6/6

✅ appsec-enabled

Time: ✅ 3.964ms (SLO: <4.200ms -5.6%) vs baseline: -0.2%

Memory: ✅ 64.232MB (SLO: <66.000MB -2.7%) vs baseline: +4.7%

✅ iast-enabled

Time: ✅ 2.447ms (SLO: <2.800ms 📉 -12.6%) vs baseline: +0.7%

Memory: ✅ 60.477MB (SLO: <62.500MB -3.2%) vs baseline: +4.9%

✅ tracer-enabled

Time: ✅ 2.063ms (SLO: <2.250ms -8.3%) vs baseline: +0.3%

Memory: ✅ 54.500MB (SLO: <56.500MB -3.5%) vs baseline: +5.0%

✅ httppropagationextract - 60/60

✅ all_styles_all_headers

Time: ✅ 82.115µs (SLO: <100.000µs 📉 -17.9%) vs baseline: +1.2%

Memory: ✅ 34.583MB (SLO: <35.500MB -2.6%) vs baseline: +5.0%

✅ b3_headers

Time: ✅ 14.278µs (SLO: <20.000µs 📉 -28.6%) vs baseline: +1.6%

Memory: ✅ 34.623MB (SLO: <35.500MB -2.5%) vs baseline: +5.0%

✅ b3_single_headers

Time: ✅ 13.157µs (SLO: <20.000µs 📉 -34.2%) vs baseline: -0.2%

Memory: ✅ 34.544MB (SLO: <35.500MB -2.7%) vs baseline: +4.9%

✅ datadog_tracecontext_tracestate_not_propagated_on_trace_id_no_match

Time: ✅ 64.042µs (SLO: <80.000µs 📉 -19.9%) vs baseline: -0.2%

Memory: ✅ 34.524MB (SLO: <35.500MB -2.7%) vs baseline: +4.8%

✅ datadog_tracecontext_tracestate_propagated_on_trace_id_match

Time: ✅ 66.148µs (SLO: <80.000µs 📉 -17.3%) vs baseline: +0.4%

Memory: ✅ 34.544MB (SLO: <35.500MB -2.7%) vs baseline: +5.0%

✅ empty_headers

Time: ✅ 1.613µs (SLO: <10.000µs 📉 -83.9%) vs baseline: +0.5%

Memory: ✅ 34.524MB (SLO: <35.500MB -2.7%) vs baseline: +4.9%

✅ full_t_id_datadog_headers

Time: ✅ 22.924µs (SLO: <30.000µs 📉 -23.6%) vs baseline: +0.9%

Memory: ✅ 34.544MB (SLO: <35.500MB -2.7%) vs baseline: +4.9%

✅ invalid_priority_header

Time: ✅ 6.561µs (SLO: <10.000µs 📉 -34.4%) vs baseline: +0.7%

Memory: ✅ 34.623MB (SLO: <35.500MB -2.5%) vs baseline: +5.0%

✅ invalid_span_id_header

Time: ✅ 6.535µs (SLO: <10.000µs 📉 -34.6%) vs baseline: +0.1%

Memory: ✅ 34.583MB (SLO: <35.500MB -2.6%) vs baseline: +4.8%

✅ invalid_tags_header

Time: ✅ 6.538µs (SLO: <10.000µs 📉 -34.6%) vs baseline: ~same

Memory: ✅ 34.564MB (SLO: <35.500MB -2.6%) vs baseline: +5.0%

✅ invalid_trace_id_header

Time: ✅ 6.537µs (SLO: <10.000µs 📉 -34.6%) vs baseline: +0.2%

Memory: ✅ 34.544MB (SLO: <35.500MB -2.7%) vs baseline: +5.1%

✅ large_header_no_matches

Time: ✅ 27.619µs (SLO: <30.000µs -7.9%) vs baseline: -0.3%

Memory: ✅ 34.524MB (SLO: <35.500MB -2.7%) vs baseline: +4.7%

✅ large_valid_headers_all

Time: ✅ 28.756µs (SLO: <40.000µs 📉 -28.1%) vs baseline: +0.3%

Memory: ✅ 34.524MB (SLO: <35.500MB -2.7%) vs baseline: +4.7%

✅ medium_header_no_matches

Time: ✅ 9.873µs (SLO: <20.000µs 📉 -50.6%) vs baseline: ~same

Memory: ✅ 34.544MB (SLO: <35.500MB -2.7%) vs baseline: +5.0%

✅ medium_valid_headers_all

Time: ✅ 11.265µs (SLO: <20.000µs 📉 -43.7%) vs baseline: -0.3%

Memory: ✅ 34.485MB (SLO: <35.500MB -2.9%) vs baseline: +4.8%

✅ none_propagation_style

Time: ✅ 1.729µs (SLO: <10.000µs 📉 -82.7%) vs baseline: +1.1%

Memory: ✅ 34.505MB (SLO: <35.500MB -2.8%) vs baseline: +4.7%

✅ tracecontext_headers

Time: ✅ 36.219µs (SLO: <40.000µs -9.5%) vs baseline: +4.2%

Memory: ✅ 34.642MB (SLO: <35.500MB -2.4%) vs baseline: +5.4%

✅ valid_headers_all

Time: ✅ 6.543µs (SLO: <10.000µs 📉 -34.6%) vs baseline: +0.4%

Memory: ✅ 34.603MB (SLO: <35.500MB -2.5%) vs baseline: +5.0%

✅ valid_headers_basic

Time: ✅ 6.123µs (SLO: <10.000µs 📉 -38.8%) vs baseline: -0.2%

Memory: ✅ 34.564MB (SLO: <35.500MB -2.6%) vs baseline: +5.0%

✅ wsgi_empty_headers

Time: ✅ 1.611µs (SLO: <10.000µs 📉 -83.9%) vs baseline: +0.7%

Memory: ✅ 34.524MB (SLO: <35.500MB -2.7%) vs baseline: +4.7%

✅ wsgi_invalid_priority_header

Time: ✅ 6.552µs (SLO: <10.000µs 📉 -34.5%) vs baseline: -0.4%

Memory: ✅ 34.465MB (SLO: <35.500MB -2.9%) vs baseline: +4.7%

✅ wsgi_invalid_span_id_header

Time: ✅ 1.609µs (SLO: <10.000µs 📉 -83.9%) vs baseline: +0.9%

Memory: ✅ 34.583MB (SLO: <35.500MB -2.6%) vs baseline: +5.1%

✅ wsgi_invalid_tags_header

Time: ✅ 6.581µs (SLO: <10.000µs 📉 -34.2%) vs baseline: ~same

Memory: ✅ 34.485MB (SLO: <35.500MB -2.9%) vs baseline: +4.5%

✅ wsgi_invalid_trace_id_header

Time: ✅ 6.535µs (SLO: <10.000µs 📉 -34.6%) vs baseline: ~same

Memory: ✅ 34.524MB (SLO: <35.500MB -2.7%) vs baseline: +4.8%

✅ wsgi_large_header_no_matches

Time: ✅ 28.995µs (SLO: <40.000µs 📉 -27.5%) vs baseline: +0.6%

Memory: ✅ 34.544MB (SLO: <35.500MB -2.7%) vs baseline: +4.7%

✅ wsgi_large_valid_headers_all

Time: ✅ 29.950µs (SLO: <40.000µs 📉 -25.1%) vs baseline: +0.3%

Memory: ✅ 34.564MB (SLO: <35.500MB -2.6%) vs baseline: +4.9%

✅ wsgi_medium_header_no_matches

Time: ✅ 10.103µs (SLO: <20.000µs 📉 -49.5%) vs baseline: ~same

Memory: ✅ 34.544MB (SLO: <35.500MB -2.7%) vs baseline: +4.9%

✅ wsgi_medium_valid_headers_all

Time: ✅ 11.836µs (SLO: <20.000µs 📉 -40.8%) vs baseline: +0.9%

Memory: ✅ 34.544MB (SLO: <35.500MB -2.7%) vs baseline: +4.7%

✅ wsgi_valid_headers_all

Time: ✅ 6.595µs (SLO: <10.000µs 📉 -34.0%) vs baseline: ~same

Memory: ✅ 34.583MB (SLO: <35.500MB -2.6%) vs baseline: +4.9%

✅ wsgi_valid_headers_basic

Time: ✅ 6.153µs (SLO: <10.000µs 📉 -38.5%) vs baseline: -0.2%

Memory: ✅ 34.465MB (SLO: <35.500MB -2.9%) vs baseline: +4.5%

✅ httppropagationinject - 16/16

✅ ids_only

Time: ✅ 20.856µs (SLO: <30.000µs 📉 -30.5%) vs baseline: +0.5%

Memory: ✅ 34.465MB (SLO: <35.500MB -2.9%) vs baseline: +4.6%

✅ with_all

Time: ✅ 28.397µs (SLO: <40.000µs 📉 -29.0%) vs baseline: +0.8%

Memory: ✅ 34.603MB (SLO: <35.500MB -2.5%) vs baseline: +5.0%

✅ with_dd_origin

Time: ✅ 24.635µs (SLO: <30.000µs 📉 -17.9%) vs baseline: +0.7%

Memory: ✅ 34.583MB (SLO: <35.500MB -2.6%) vs baseline: +4.9%

✅ with_priority_and_origin

Time: ✅ 24.314µs (SLO: <40.000µs 📉 -39.2%) vs baseline: +1.0%

Memory: ✅ 34.544MB (SLO: <35.500MB -2.7%) vs baseline: +4.9%

✅ with_sampling_priority

Time: ✅ 20.866µs (SLO: <30.000µs 📉 -30.4%) vs baseline: +0.6%

Memory: ✅ 34.564MB (SLO: <35.500MB -2.6%) vs baseline: +4.8%

✅ with_tags

Time: ✅ 26.402µs (SLO: <40.000µs 📉 -34.0%) vs baseline: ~same

Memory: ✅ 34.583MB (SLO: <35.500MB -2.6%) vs baseline: +4.9%

✅ with_tags_invalid

Time: ✅ 27.674µs (SLO: <40.000µs 📉 -30.8%) vs baseline: -0.6%

Memory: ✅ 34.485MB (SLO: <35.500MB -2.9%) vs baseline: +4.6%

✅ with_tags_max_size

Time: ✅ 26.763µs (SLO: <40.000µs 📉 -33.1%) vs baseline: -0.1%

Memory: ✅ 34.544MB (SLO: <35.500MB -2.7%) vs baseline: +5.1%

✅ iast_aspects - 40/40

✅ re_expand_aspect

Time: ✅ 32.007µs (SLO: <40.000µs 📉 -20.0%) vs baseline: -0.3%

Memory: ✅ 39.774MB (SLO: <41.000MB -3.0%) vs baseline: +4.8%

✅ re_expand_noaspect

Time: ✅ 28.590µs (SLO: <40.000µs 📉 -28.5%) vs baseline: -0.4%

Memory: ✅ 39.715MB (SLO: <41.000MB -3.1%) vs baseline: +4.5%

✅ re_findall_aspect

Time: ✅ 2.941µs (SLO: <10.000µs 📉 -70.6%) vs baseline: +0.7%

Memory: ✅ 39.774MB (SLO: <41.000MB -3.0%) vs baseline: +4.5%

✅ re_findall_noaspect

Time: ✅ 1.419µs (SLO: <10.000µs 📉 -85.8%) vs baseline: -0.4%

Memory: ✅ 39.852MB (SLO: <41.000MB -2.8%) vs baseline: +5.3%

✅ re_finditer_aspect

Time: ✅ 4.743µs (SLO: <10.000µs 📉 -52.6%) vs baseline: +6.6%

Memory: ✅ 39.833MB (SLO: <41.000MB -2.8%) vs baseline: +4.8%

✅ re_finditer_noaspect

Time: ✅ 1.400µs (SLO: <10.000µs 📉 -86.0%) vs baseline: -0.8%

Memory: ✅ 39.754MB (SLO: <41.000MB -3.0%) vs baseline: +4.8%

✅ re_fullmatch_aspect

Time: ✅ 2.735µs (SLO: <10.000µs 📉 -72.7%) vs baseline: +2.6%

Memory: ✅ 39.793MB (SLO: <41.000MB -2.9%) vs baseline: +4.9%

✅ re_fullmatch_noaspect

Time: ✅ 1.325µs (SLO: <10.000µs 📉 -86.8%) vs baseline: -0.6%

Memory: ✅ 39.754MB (SLO: <41.000MB -3.0%) vs baseline: +4.5%

✅ re_group_aspect

Time: ✅ 3.098µs (SLO: <10.000µs 📉 -69.0%) vs baseline: +4.9%

Memory: ✅ 39.833MB (SLO: <41.000MB -2.8%) vs baseline: +4.7%

✅ re_group_noaspect

Time: ✅ 1.631µs (SLO: <10.000µs 📉 -83.7%) vs baseline: +0.5%

Memory: ✅ 39.852MB (SLO: <41.000MB -2.8%) vs baseline: +4.9%

✅ re_groups_aspect

Time: ✅ 3.187µs (SLO: <10.000µs 📉 -68.1%) vs baseline: +5.3%

Memory: ✅ 39.813MB (SLO: <41.000MB -2.9%) vs baseline: +4.8%

✅ re_groups_noaspect

Time: ✅ 1.714µs (SLO: <10.000µs 📉 -82.9%) vs baseline: -1.0%

Memory: ✅ 39.892MB (SLO: <41.000MB -2.7%) vs baseline: +5.2%

✅ re_match_aspect

Time: ✅ 2.821µs (SLO: <10.000µs 📉 -71.8%) vs baseline: +5.5%

Memory: ✅ 39.774MB (SLO: <41.000MB -3.0%) vs baseline: +4.9%

✅ re_match_noaspect

Time: ✅ 1.347µs (SLO: <10.000µs 📉 -86.5%) vs baseline: +1.6%

Memory: ✅ 39.911MB (SLO: <41.000MB -2.7%) vs baseline: +5.1%

✅ re_search_aspect

Time: ✅ 2.512µs (SLO: <10.000µs 📉 -74.9%) vs baseline: ~same

Memory: ✅ 39.852MB (SLO: <41.000MB -2.8%) vs baseline: +4.9%

✅ re_search_noaspect

Time: ✅ 1.186µs (SLO: <10.000µs 📉 -88.1%) vs baseline: -0.2%

Memory: ✅ 39.852MB (SLO: <41.000MB -2.8%) vs baseline: +4.9%

✅ re_sub_aspect

Time: ✅ 3.377µs (SLO: <10.000µs 📉 -66.2%) vs baseline: +0.4%

Memory: ✅ 39.813MB (SLO: <41.000MB -2.9%) vs baseline: +4.7%

✅ re_sub_noaspect

Time: ✅ 1.531µs (SLO: <10.000µs 📉 -84.7%) vs baseline: +0.5%

Memory: ✅ 39.754MB (SLO: <41.000MB -3.0%) vs baseline: +4.7%

✅ re_subn_aspect

Time: ✅ 3.597µs (SLO: <10.000µs 📉 -64.0%) vs baseline: ~same

Memory: ✅ 39.734MB (SLO: <41.000MB -3.1%) vs baseline: +4.6%

✅ re_subn_noaspect

Time: ✅ 1.628µs (SLO: <10.000µs 📉 -83.7%) vs baseline: +1.5%

Memory: ✅ 39.793MB (SLO: <41.000MB -2.9%) vs baseline: +4.4%

✅ iastaspectssplit - 12/12

✅ rsplit_aspect

Time: ✅ 1.421µs (SLO: <10.000µs 📉 -85.8%) vs baseline: ~same

Memory: ✅ 39.774MB (SLO: <41.000MB -3.0%) vs baseline: +4.6%

✅ rsplit_noaspect

Time: ✅ 0.581µs (SLO: <10.000µs 📉 -94.2%) vs baseline: +0.8%

Memory: ✅ 39.734MB (SLO: <41.000MB -3.1%) vs baseline: +4.9%

✅ split_aspect

Time: ✅ 1.410µs (SLO: <10.000µs 📉 -85.9%) vs baseline: -0.4%

Memory: ✅ 39.813MB (SLO: <41.000MB -2.9%) vs baseline: +4.8%

✅ split_noaspect

Time: ✅ 0.571µs (SLO: <10.000µs 📉 -94.3%) vs baseline: +0.3%

Memory: ✅ 39.734MB (SLO: <41.000MB -3.1%) vs baseline: +4.8%

✅ splitlines_aspect

Time: ✅ 1.423µs (SLO: <10.000µs 📉 -85.8%) vs baseline: +1.3%

Memory: ✅ 39.872MB (SLO: <41.000MB -2.8%) vs baseline: +5.0%

✅ splitlines_noaspect

Time: ✅ 0.583µs (SLO: <10.000µs 📉 -94.2%) vs baseline: -0.4%

Memory: ✅ 39.833MB (SLO: <41.000MB -2.8%) vs baseline: +4.9%

✅ otelsdkspan - 24/24

✅ add-event

Time: ✅ 40.273ms (SLO: <42.000ms -4.1%) vs baseline: ~same

Memory: ✅ 37.238MB (SLO: <39.000MB -4.5%) vs baseline: +4.7%

✅ add-link

Time: ✅ 36.162ms (SLO: <38.550ms -6.2%) vs baseline: ~same

Memory: ✅ 37.218MB (SLO: <39.000MB -4.6%) vs baseline: +4.6%

✅ add-metrics

Time: ✅ 219.091ms (SLO: <232.000ms -5.6%) vs baseline: ~same

Memory: ✅ 37.277MB (SLO: <39.000MB -4.4%) vs baseline: +5.2%

✅ add-tags

Time: ✅ 211.926ms (SLO: <221.600ms -4.4%) vs baseline: +0.4%

Memory: ✅ 37.218MB (SLO: <39.000MB -4.6%) vs baseline: +4.6%

✅ get-context

Time: ✅ 29.401ms (SLO: <31.300ms -6.1%) vs baseline: +1.2%

Memory: ✅ 37.100MB (SLO: <39.000MB -4.9%) vs baseline: +4.9%

✅ is-recording

Time: ✅ 29.099ms (SLO: <31.000ms -6.1%) vs baseline: ~same

Memory: ✅ 37.021MB (SLO: <39.000MB -5.1%) vs baseline: +5.1%

✅ record-exception

Time: ✅ 62.831ms (SLO: <65.850ms -4.6%) vs baseline: ~same

Memory: ✅ 37.257MB (SLO: <39.000MB -4.5%) vs baseline: +4.9%

✅ set-status

Time: ✅ 32.085ms (SLO: <34.150ms -6.0%) vs baseline: +0.8%

Memory: ✅ 37.041MB (SLO: <39.000MB -5.0%) vs baseline: +4.7%

✅ start

Time: ✅ 28.700ms (SLO: <30.150ms -4.8%) vs baseline: +0.3%

Memory: ✅ 37.100MB (SLO: <39.000MB -4.9%) vs baseline: +4.9%

✅ start-finish

Time: ✅ 33.944ms (SLO: <35.350ms -4.0%) vs baseline: -0.1%

Memory: ✅ 37.080MB (SLO: <39.000MB -4.9%) vs baseline: +4.7%

✅ start-finish-telemetry

Time: ✅ 33.799ms (SLO: <35.450ms -4.7%) vs baseline: -0.3%

Memory: ✅ 37.198MB (SLO: <39.000MB -4.6%) vs baseline: +5.1%

✅ update-name

Time: ✅ 31.079ms (SLO: <33.400ms -6.9%) vs baseline: -0.2%

Memory: ✅ 36.923MB (SLO: <39.000MB -5.3%) vs baseline: +4.1%

✅ otelspan - 22/22

✅ add-event

Time: ✅ 38.466ms (SLO: <47.150ms 📉 -18.4%) vs baseline: +0.6%

Memory: ✅ 39.079MB (SLO: <47.000MB 📉 -16.9%) vs baseline: +4.8%

✅ add-metrics

Time: ✅ 320.566ms (SLO: <344.800ms -7.0%) vs baseline: +0.7%

Memory: ✅ 43.304MB (SLO: <47.500MB -8.8%) vs baseline: +5.0%

✅ add-tags

Time: ✅ 288.624ms (SLO: <314.000ms -8.1%) vs baseline: +0.3%

Memory: ✅ 43.370MB (SLO: <47.500MB -8.7%) vs baseline: +5.1%

✅ get-context

Time: ✅ 78.913ms (SLO: <92.350ms 📉 -14.5%) vs baseline: -0.1%

Memory: ✅ 39.496MB (SLO: <46.500MB 📉 -15.1%) vs baseline: +5.2%

✅ is-recording

Time: ✅ 36.205ms (SLO: <44.500ms 📉 -18.6%) vs baseline: +0.9%

Memory: ✅ 38.873MB (SLO: <47.500MB 📉 -18.2%) vs baseline: +4.6%

✅ record-exception

Time: ✅ 57.231ms (SLO: <67.650ms 📉 -15.4%) vs baseline: +0.2%

Memory: ✅ 39.579MB (SLO: <47.000MB 📉 -15.8%) vs baseline: +4.8%

✅ set-status

Time: ✅ 42.907ms (SLO: <50.400ms 📉 -14.9%) vs baseline: +1.8%

Memory: ✅ 38.924MB (SLO: <47.000MB 📉 -17.2%) vs baseline: +4.6%

✅ start

Time: ✅ 35.499ms (SLO: <43.450ms 📉 -18.3%) vs baseline: +0.2%

Memory: ✅ 38.960MB (SLO: <47.000MB 📉 -17.1%) vs baseline: +5.0%

✅ start-finish

Time: ✅ 81.368ms (SLO: <88.000ms -7.5%) vs baseline: ~same

Memory: ✅ 36.903MB (SLO: <46.500MB 📉 -20.6%) vs baseline: +4.6%

✅ start-finish-telemetry

Time: ✅ 82.892ms (SLO: <89.000ms -6.9%) vs baseline: -0.3%

Memory: ✅ 37.041MB (SLO: <46.500MB 📉 -20.3%) vs baseline: +5.2%

✅ update-name

Time: ✅ 36.870ms (SLO: <45.150ms 📉 -18.3%) vs baseline: +0.5%

Memory: ✅ 39.081MB (SLO: <47.000MB 📉 -16.8%) vs baseline: +4.9%

✅ packagesupdateimporteddependencies - 24/24

✅ import_many

Time: ✅ 155.180µs (SLO: <170.000µs -8.7%) vs baseline: +0.3%

Memory: ✅ 39.072MB (SLO: <41.000MB -4.7%) vs baseline: +4.8%

✅ import_many_cached

Time: ✅ 122.171µs (SLO: <130.000µs -6.0%) vs baseline: +1.4%

Memory: ✅ 38.951MB (SLO: <41.000MB -5.0%) vs baseline: +4.5%

✅ import_many_stdlib

Time: ✅ 1.629ms (SLO: <1.750ms -6.9%) vs baseline: +0.8%

Memory: ✅ 39.382MB (SLO: <41.000MB -3.9%) vs baseline: +5.0%

✅ import_many_stdlib_cached

Time: ✅ 0.976ms (SLO: <1.100ms 📉 -11.3%) vs baseline: +0.4%

Memory: ✅ 39.186MB (SLO: <41.000MB -4.4%) vs baseline: +4.8%

✅ import_many_unknown

Time: ✅ 828.605µs (SLO: <890.000µs -6.9%) vs baseline: -0.2%

Memory: ✅ 39.147MB (SLO: <41.000MB -4.5%) vs baseline: +4.4%

✅ import_many_unknown_cached

Time: ✅ 784.133µs (SLO: <870.000µs -9.9%) vs baseline: -0.6%

Memory: ✅ 39.183MB (SLO: <41.000MB -4.4%) vs baseline: +5.0%

✅ import_one

Time: ✅ 19.770µs (SLO: <30.000µs 📉 -34.1%) vs baseline: -0.6%

Memory: ✅ 38.992MB (SLO: <41.000MB -4.9%) vs baseline: +4.2%

✅ import_one_cache

Time: ✅ 6.298µs (SLO: <10.000µs 📉 -37.0%) vs baseline: +0.3%

Memory: ✅ 39.052MB (SLO: <41.000MB -4.8%) vs baseline: +4.7%

✅ import_one_stdlib

Time: ✅ 18.749µs (SLO: <20.000µs -6.3%) vs baseline: +0.7%

Memory: ✅ 39.062MB (SLO: <41.000MB -4.7%) vs baseline: +4.9%

✅ import_one_stdlib_cache

Time: ✅ 6.283µs (SLO: <10.000µs 📉 -37.2%) vs baseline: -0.1%

Memory: ✅ 38.992MB (SLO: <41.000MB -4.9%) vs baseline: +4.3%

✅ import_one_unknown

Time: ✅ 45.217µs (SLO: <50.000µs -9.6%) vs baseline: -1.1%

Memory: ✅ 39.148MB (SLO: <41.000MB -4.5%) vs baseline: +5.2%

✅ import_one_unknown_cache

Time: ✅ 6.261µs (SLO: <10.000µs 📉 -37.4%) vs baseline: ~same

Memory: ✅ 38.993MB (SLO: <41.000MB -4.9%) vs baseline: +4.5%

✅ ratelimiter - 12/12

✅ defaults

Time: ✅ 2.358µs (SLO: <10.000µs 📉 -76.4%) vs baseline: -0.2%

Memory: ✅ 34.446MB (SLO: <35.500MB -3.0%) vs baseline: +4.6%

✅ high_rate_limit

Time: ✅ 2.421µs (SLO: <10.000µs 📉 -75.8%) vs baseline: +0.6%

Memory: ✅ 34.485MB (SLO: <35.500MB -2.9%) vs baseline: +4.9%

✅ long_window

Time: ✅ 2.352µs (SLO: <10.000µs 📉 -76.5%) vs baseline: -0.7%

Memory: ✅ 34.485MB (SLO: <35.500MB -2.9%) vs baseline: +4.9%

✅ low_rate_limit

Time: ✅ 2.365µs (SLO: <10.000µs 📉 -76.3%) vs baseline: +0.3%

Memory: ✅ 34.426MB (SLO: <35.500MB -3.0%) vs baseline: +4.7%

✅ no_rate_limit

Time: ✅ 0.837µs (SLO: <10.000µs 📉 -91.6%) vs baseline: -0.2%

Memory: ✅ 34.406MB (SLO: <35.500MB -3.1%) vs baseline: +5.0%

✅ short_window

Time: ✅ 2.481µs (SLO: <10.000µs 📉 -75.2%) vs baseline: +0.2%

Memory: ✅ 34.446MB (SLO: <35.500MB -3.0%) vs baseline: +4.8%

✅ recursivecomputation - 8/8

✅ deep

Time: ✅ 308.520ms (SLO: <320.950ms -3.9%) vs baseline: ~same

Memory: ✅ 35.645MB (SLO: <36.500MB -2.3%) vs baseline: +4.8%

✅ deep-profiled

Time: ✅ 328.353ms (SLO: <359.150ms -8.6%) vs baseline: ~same

Memory: ✅ 39.302MB (SLO: <40.500MB -3.0%) vs baseline: +4.7%

✅ medium

Time: ✅ 7.021ms (SLO: <7.400ms -5.1%) vs baseline: +0.2%

Memory: ✅ 34.544MB (SLO: <35.500MB -2.7%) vs baseline: +5.2%

✅ shallow

Time: ✅ 0.941ms (SLO: <1.050ms 📉 -10.4%) vs baseline: -0.2%

Memory: ✅ 34.485MB (SLO: <35.500MB -2.9%) vs baseline: +5.0%

✅ samplingrules - 8/8

✅ average_match

Time: ✅ 138.680µs (SLO: <290.000µs 📉 -52.2%) vs baseline: +0.5%

Memory: ✅ 34.465MB (SLO: <35.500MB -2.9%) vs baseline: +5.0%

✅ high_match

Time: ✅ 174.287µs (SLO: <480.000µs 📉 -63.7%) vs baseline: ~same

Memory: ✅ 34.485MB (SLO: <35.500MB -2.9%) vs baseline: +5.0%

✅ low_match

Time: ✅ 98.983µs (SLO: <120.000µs 📉 -17.5%) vs baseline: +0.1%

Memory: ✅ 603.202MB (SLO: <700.000MB 📉 -13.8%) vs baseline: +4.9%

✅ very_low_match

Time: ✅ 2.659ms (SLO: <8.500ms 📉 -68.7%) vs baseline: -0.3%

Memory: ✅ 70.639MB (SLO: <75.000MB -5.8%) vs baseline: +4.8%

✅ sethttpmeta - 32/32

✅ all-disabled

Time: ✅ 10.618µs (SLO: <20.000µs 📉 -46.9%) vs baseline: +0.3%

Memory: ✅ 34.957MB (SLO: <36.000MB -2.9%) vs baseline: +5.2%

✅ all-enabled

Time: ✅ 40.074µs (SLO: <50.000µs 📉 -19.9%) vs baseline: -0.3%

Memory: ✅ 34.977MB (SLO: <36.000MB -2.8%) vs baseline: +4.9%

✅ collectipvariant_exists

Time: ✅ 40.940µs (SLO: <50.000µs 📉 -18.1%) vs baseline: -0.1%

Memory: ✅ 34.839MB (SLO: <36.000MB -3.2%) vs baseline: +4.4%

✅ no-collectipvariant

Time: ✅ 40.425µs (SLO: <50.000µs 📉 -19.2%) vs baseline: +0.6%

Memory: ✅ 34.977MB (SLO: <36.000MB -2.8%) vs baseline: +5.0%

✅ no-useragentvariant

Time: ✅ 38.658µs (SLO: <50.000µs 📉 -22.7%) vs baseline: -0.4%

Memory: ✅ 34.937MB (SLO: <36.000MB -3.0%) vs baseline: +5.0%

✅ obfuscation-no-query

Time: ✅ 40.689µs (SLO: <50.000µs 📉 -18.6%) vs baseline: +0.1%

Memory: ✅ 34.957MB (SLO: <36.000MB -2.9%) vs baseline: +4.9%

✅ obfuscation-regular-case-explicit-query

Time: ✅ 75.717µs (SLO: <90.000µs 📉 -15.9%) vs baseline: -0.1%

Memory: ✅ 35.271MB (SLO: <36.500MB -3.4%) vs baseline: +4.9%

✅ obfuscation-regular-case-implicit-query

Time: ✅ 76.456µs (SLO: <90.000µs 📉 -15.0%) vs baseline: ~same

Memory: ✅ 35.291MB (SLO: <36.500MB -3.3%) vs baseline: +4.8%

✅ obfuscation-send-querystring-disabled

Time: ✅ 154.570µs (SLO: <170.000µs -9.1%) vs baseline: +0.4%

Memory: ✅ 35.409MB (SLO: <36.500MB -3.0%) vs baseline: +5.3%

✅ obfuscation-worst-case-explicit-query

Time: ✅ 148.480µs (SLO: <160.000µs -7.2%) vs baseline: ~same

Memory: ✅ 35.330MB (SLO: <36.500MB -3.2%) vs baseline: +5.0%

✅ obfuscation-worst-case-implicit-query

Time: ✅ 155.090µs (SLO: <170.000µs -8.8%) vs baseline: +0.1%

Memory: ✅ 35.330MB (SLO: <36.500MB -3.2%) vs baseline: +4.7%

✅ useragentvariant_exists_1

Time: ✅ 39.538µs (SLO: <50.000µs 📉 -20.9%) vs baseline: +0.3%

Memory: ✅ 34.918MB (SLO: <36.000MB -3.0%) vs baseline: +4.7%

✅ useragentvariant_exists_2

Time: ✅ 40.638µs (SLO: <50.000µs 📉 -18.7%) vs baseline: ~same

Memory: ✅ 34.937MB (SLO: <36.000MB -3.0%) vs baseline: +5.0%

✅ useragentvariant_exists_3

Time: ✅ 40.163µs (SLO: <50.000µs 📉 -19.7%) vs baseline: +0.5%

Memory: ✅ 34.819MB (SLO: <36.000MB -3.3%) vs baseline: +4.6%

✅ useragentvariant_not_exists_1

Time: ✅ 39.901µs (SLO: <50.000µs 📉 -20.2%) vs baseline: +1.0%

Memory: ✅ 34.937MB (SLO: <36.000MB -3.0%) vs baseline: +5.0%

✅ useragentvariant_not_exists_2

Time: ✅ 39.506µs (SLO: <50.000µs 📉 -21.0%) vs baseline: +0.3%

Memory: ✅ 34.878MB (SLO: <36.000MB -3.1%) vs baseline: +4.6%

✅ span - 26/26

✅ add-event

Time: ✅ 17.195ms (SLO: <22.500ms 📉 -23.6%) vs baseline: -0.4%

Memory: ✅ 36.451MB (SLO: <53.000MB 📉 -31.2%) vs baseline: +4.9%

✅ add-metrics

Time: ✅ 86.987ms (SLO: <93.500ms -7.0%) vs baseline: -0.4%

Memory: ✅ 40.645MB (SLO: <53.000MB 📉 -23.3%) vs baseline: +4.5%

✅ add-tags

Time: ✅ 143.647ms (SLO: <155.000ms -7.3%) vs baseline: -0.2%

Memory: ✅ 40.736MB (SLO: <53.000MB 📉 -23.1%) vs baseline: +4.8%

✅ get-context

Time: ✅ 16.023ms (SLO: <20.500ms 📉 -21.8%) vs baseline: ~same

Memory: ✅ 36.459MB (SLO: <53.000MB 📉 -31.2%) vs baseline: +5.2%

✅ is-recording

Time: ✅ 16.299ms (SLO: <20.500ms 📉 -20.5%) vs baseline: +0.8%

Memory: ✅ 36.363MB (SLO: <53.000MB 📉 -31.4%) vs baseline: +4.7%

✅ record-exception

Time: ✅ 35.364ms (SLO: <40.000ms 📉 -11.6%) vs baseline: -0.3%

Memory: ✅ 36.893MB (SLO: <53.000MB 📉 -30.4%) vs baseline: +4.6%

✅ set-status

Time: ✅ 17.948ms (SLO: <22.000ms 📉 -18.4%) vs baseline: ~same

Memory: ✅ 36.417MB (SLO: <53.000MB 📉 -31.3%) vs baseline: +4.6%

✅ start

Time: ✅ 15.868ms (SLO: <20.500ms 📉 -22.6%) vs baseline: -0.5%

Memory: ✅ 36.270MB (SLO: <53.000MB 📉 -31.6%) vs baseline: +4.2%

✅ start-finish

Time: ✅ 50.583ms (SLO: <52.500ms -3.7%) vs baseline: ~same

Memory: ✅ 34.485MB (SLO: <35.500MB -2.9%) vs baseline: +4.9%

✅ start-finish-telemetry

Time: ✅ 51.857ms (SLO: <54.500ms -4.9%) vs baseline: -0.2%

Memory: ✅ 34.505MB (SLO: <35.500MB -2.8%) vs baseline: +4.9%

✅ start-finish-traceid128

Time: ✅ 53.805ms (SLO: <57.000ms -5.6%) vs baseline: ~same

Memory: ✅ 34.426MB (SLO: <35.500MB -3.0%) vs baseline: +4.6%

✅ start-traceid128

Time: ✅ 16.346ms (SLO: <22.500ms 📉 -27.4%) vs baseline: +1.0%

Memory: ✅ 36.365MB (SLO: <53.000MB 📉 -31.4%) vs baseline: +5.1%

✅ update-name

Time: ✅ 16.384ms (SLO: <22.000ms 📉 -25.5%) vs baseline: ~same

Memory: ✅ 36.512MB (SLO: <53.000MB 📉 -31.1%) vs baseline: +5.0%

✅ tracer - 6/6

✅ large

Time: ✅ 29.097ms (SLO: <32.950ms 📉 -11.7%) vs baseline: -0.1%

Memory: ✅ 35.232MB (SLO: <36.500MB -3.5%) vs baseline: +4.7%

✅ medium

Time: ✅ 2.895ms (SLO: <3.200ms -9.5%) vs baseline: +0.7%

Memory: ✅ 34.485MB (SLO: <35.500MB -2.9%) vs baseline: +4.9%

✅ small

Time: ✅ 325.310µs (SLO: <370.000µs 📉 -12.1%) vs baseline: ~same

Memory: ✅ 34.465MB (SLO: <35.500MB -2.9%) vs baseline: +4.8%

ℹ️ Scenarios Missing SLO Configuration (9 scenarios)

The following scenarios exist in candidate data but have no SLO thresholds configured:

coreapiscenario-core_dispatch_listeners
coreapiscenario-core_dispatch_no_listeners
coreapiscenario-core_dispatch_with_results_listeners
coreapiscenario-core_dispatch_with_results_no_listeners
djangosimple-baseline
errortrackingdjangosimple-baseline
errortrackingflasksqli-baseline
flasksimple-baseline
flasksqli-baseline

dd-octo-sts bot added the Profiling Continous Profling label Nov 29, 2025

dd-octo-sts bot requested review from a team as code owners November 29, 2025 19:48

dd-octo-sts bot requested review from ZStriker19, avara1986 and r1viollet November 29, 2025 19:48

fix(profiling): fix absurdly high lock hold times in Lock Profiler [backport 3.19] #15463

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fix(profiling): fix absurdly high lock hold times in Lock Profiler [backport 3.19] #15463

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dd-octo-sts bot commented Nov 29, 2025

Fix lock profiler generating release samples for non-sampled acquires

Problem

Impact

Root Cause

Fix

Testing

Unit test

Manual Validation

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github-actions bot commented Nov 29, 2025

Uh oh!

github-actions bot commented Nov 29, 2025

Bootstrap import analysis

Summary

Import time breakdown

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pr-commenter bot commented Nov 29, 2025

Performance SLOs

✅ add_aspect

✅ add_inplace_aspect

✅ add_inplace_noaspect

✅ add_noaspect

✅ bytearray_aspect

✅ bytearray_extend_aspect

✅ bytearray_extend_noaspect

✅ bytearray_noaspect

✅ bytes_aspect

✅ bytes_noaspect

✅ bytesio_aspect

✅ bytesio_noaspect

✅ capitalize_aspect

✅ capitalize_noaspect

✅ casefold_aspect

✅ casefold_noaspect

✅ decode_aspect

✅ decode_noaspect

✅ encode_aspect

✅ encode_noaspect

✅ format_aspect

✅ format_map_aspect

✅ format_map_noaspect

✅ format_noaspect

✅ index_aspect

✅ index_noaspect

✅ join_aspect

✅ join_noaspect

✅ ljust_aspect

✅ ljust_noaspect

✅ lower_aspect

✅ lower_noaspect

✅ lstrip_aspect

✅ lstrip_noaspect

✅ modulo_aspect

✅ modulo_aspect_for_bytearray_bytearray

✅ modulo_aspect_for_bytes

✅ modulo_aspect_for_bytes_bytearray

✅ modulo_noaspect

✅ replace_aspect

✅ replace_noaspect

✅ repr_aspect

✅ repr_noaspect

✅ rstrip_aspect

✅ rstrip_noaspect

✅ slice_aspect

✅ slice_noaspect

✅ stringio_aspect

✅ stringio_noaspect

✅ strip_aspect

✅ strip_noaspect

✅ swapcase_aspect

✅ swapcase_noaspect

✅ title_aspect

✅ title_noaspect

✅ translate_aspect

✅ translate_noaspect